function hideAll()
   {
     if (navigator.appName.indexOf("Microsoft") != -1)
       {
           num = document.all.tags("div").length;
           for(i=0;i<num;i++)
            {
              document.all.tags("div").item(i).style.visibility = "hidden";
           }
         } 
       else
       {
			//strBrowName = navigator.appName 
			//strAppVersion = navigator.appVersion
			isNS6 = (!document.all && document.getElementById) ? true : false;
			isNS4 = (document.layers) ? true : false;

			
			//if (strBrowName.indexOf("Netscape") != -1 && strAppVersion.indexOf(5.0) != -1)	
			if(isNS6)
				{
					//alert(strAppVersion.indexOf(5.0));
					num = document.getElementsByTagName("div").length;
					//alert(num);
					for(i=0;i<num;i++)
						 {
							  document.getElementsByTagName("div").item(i).style.visibility = "hidden";
						}
					
				}
			if(isNS4)
				{
					num = document.layers.length;
					//alert("test");
					for(i=0;i<num;i++)
						{
							document.layers[i].visibility = "hide";
						}
				}	
        }       
          
    }
     
 
  function showhide(divid)
   {
		strBrowName = navigator.appName 
		strAppVersion = navigator.appVersion
		if (strBrowName.indexOf("Netscape") != -1 && strAppVersion.indexOf(5.0) != -1)	
			{
				//Code for hiding all layers, still being researched
				hideAll();
			}
		else
			{
				hideAll();
			}	
		if (navigator.appName.indexOf("Microsoft") != -1)
		  {
			  if(document.all.item(divid).style.visibility == "hidden")
				  {       
				   	  document.all.item(divid).style.visibility = "visible";
				  }
			 else
				 {
					 document.all.item(divid).style.visibility = "hidden";
				 }
       }
       else
        {
            strBrowName = navigator.appName 
			strAppVersion = navigator.appVersion
			isNS6 = (!document.all && document.getElementById) ? true : false;
			isNS4 = (document.layers) ? true : false;
			//if (strBrowName.indexOf("Netscape") != -1 && strAppVersion.indexOf(5.0) != -1)
			if(isNS6)
				
				{   
					if(document.getElementById(divid).style.visibility == "hidden")
						{       
							 document.getElementById(divid).style.visibility = "visible";
						 }
					 else
						 {
							 document.getElementById(divid).style.visibility = "hidden";
						 }				
				
				}
			//else
			if(isNS4)
				{      
					if(document.layers[divid].visibility == "hide")
						 {
							 document.layers[divid].visibility = "show"
						}
					else
						 {
							  document.layers[divid].visibility = "hide";
						}     
				} 
        
	   }
    }